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most efficient

ADJECTIVE

adept, effective

Synonyms

STRONGEST

able active adequate capable competent decisive dynamic economical energetic potent powerful productive profitable skilled skillful tough useful valuable

WEAK

accomplished adapted apt businesslike clever conducive deft economic effectual efficacious equal to experienced expert familiar with fitted good at good for handy masterly organized practiced proficient qualified ready saving shrewd systematic talented virtuous well-organized

Antonyms

STRONGEST

delicate fragile idle impotent inactive inadequate incapable incompetent ineffective inept lazy sluggish unable unskilled unskillful useless weak worthless

WEAK

helpless inefficient powerless

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Nvidia climbed 6.3% after the company unveiled the RTX Spark, which it described as the most efficient PC chip ever built.

From Barron's • Jun. 1, 2026

She described it as the "most efficient fighting style that ever existed," and when it pays off like it did against Carano, there are not many who can argue with her.

From BBC • May 17, 2026

While graphics processing units are optimized for training large models, CPUs are the most efficient way to power agentic AI needs such as real-time reasoning and coding, the company said.

From MarketWatch • Apr. 24, 2026

Google has raised the stakes in the contest to develop the world’s fastest and most efficient artificial-intelligence chips.

From The Wall Street Journal • Apr. 22, 2026

Lawrence settled on a linear accelerator as the most efficient neutron producer for his purpose.

From "Big Science" by Michael Hiltzik